[Zaiberia]

You can’t little wheely luggage until it’s little wheely luggage time?

[beedeebeedee]

Nor if you have a class of low paid (and before that unpaid) people who carried luggage for travelers. There was a lot of social change in the US after the 1960's, and travel only became democratized recently.

[setr]

You have this in India today, yet wheeled luggage has completely displaced unwheeled in any airport

[lukan]

Not on unpaved, bumpy roads.